A+2000 Washable Electrostatic Permanent Custom Air Filter - 16" x 20" x 1"You may know them as washable air or even permanent air filters; some just refer to them as electrostatic filters. Either way, the "A+2000" brand Permanent Washable Electrostatic custom air filters are truly quality products, built to last a lifetime. Unlike some permanent custom air filters, the A+2000 uses no foam that may clog, degrade and restrict air flow, so it can provide a lifetime of dependable service. And there are no metal parts that could

built to last a lifetime

Some of the other benefits of A+2000 custom air filters include the following

In general

They are easy to clean by simply backwashing every month with cold water so you don‰۪t need expensive cleaners

such as dust

the greater it's resistance to airflow

This is designed to fit into 1" Return Air Grilles

You may know them as washable air or even permanent air filters

from the air stream

Filtering inserts are shipped in an easily stored packet

and the greater the pressure drop it creates

the A+2000 uses no foam that may clog